CVE-2019-1664

What it is

A vulnerability in the hxterm service of Cisco HyperFlex Software could allow an unauthenticated, local attacker to gain root access to all nodes in the cluster. The vulnerability is due to insufficient authentication controls. An attacker could exploit this vulnerability by connecting to the hxterm service as a non-privileged, local user. A successful exploit could allow the attacker to gain root access to all member nodes of the HyperFlex cluster. This vulnerability affects Cisco HyperFlex Software Releases prior to 3.5(2a).

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2019-02-21 19:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:28 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.3% in the next 30 days (EPSS).
• Severity: 7.8 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2019-02-21 19:29 UTC

Last modified

2026-06-17 02:28 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-284 · Improper access control

Record status

Modified

Affected

• Cisco Hyperflex Hx Data Platform 2.6\(1a\)
• Cisco Hyperflex Hx Data Platform 2.6\(1b\)
• Cisco Hyperflex Hx Data Platform 2.6\(1d\)
• Cisco Hyperflex Hx Data Platform 2.6\(1e\)
• Cisco Hyperflex Hx Data Platform 3.0\(1a\)
• Cisco Hyperflex Hx Data Platform 3.0\(1b\)
• Cisco Hyperflex Hx Data Platform 3.0\(1c\)
• Cisco Hyperflex Hx Data Platform 3.0\(1d\)

Attack profile CVSS 3.1 · 7.8

Attack vector

Local

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

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